EP 0164927 B1 19881026 - RELEASE DEVICES
Title (en)
RELEASE DEVICES
Publication
Application
Priority
- GB 8414123 A 19840602
- GB 8422093 A 19840831
- GB 8505410 A 19850302
Abstract (en)
[origin: EP0164927A2] A bolus for administering a biologically active material for example an insecticide into a liquid environment such as the water of a reservoir or lake or an anthelmintic into the rumen juices of an animal comprises a succession of liquid impermeable outer segments (153, 263) enclosing a core which in the simplest case may be a single unitary active material segment (151, Figure 14) or in a developed embodiment may comprise a succession of annular segments (269, Figure 25) contained in sealed recesses (267) in the outer segments (263) which are located on a degradable central rod (265) e.g. of magnesium alloy, which itself will be active for instance to combat magnesium deficiency.As shown in Figure 25, the device may incorporate a weight (275) which, in animal use, inhabits regurgitation. Additionally, the device may include a galvanic couple element which, with the rod (265) sets up a galvanic action which controls the speed of degradation of the rod (265) and thereby the rate of administration of the segments (26).
IPC 1-7
IPC 8 full level
A61K 9/00 (2006.01); A61K 9/22 (2006.01); A61M 31/00 (2006.01)
CPC (source: EP US)
A61K 9/0068 (2013.01 - EP US); A61M 31/002 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0164927 A2 19851218; EP 0164927 A3 19861008; EP 0164927 B1 19881026; AU 4312385 A 19851205; AU 579637 B2 19881201; BR 8502640 A 19860212; CA 1262524 A 19891031; DE 3565776 D1 19881201; DK 161667 B 19910805; DK 161667 C 19920113; DK 241285 A 19851203; DK 241285 D0 19850530; ES 543727 A0 19860101; ES 8603749 A1 19860101; GR 851195 B 19851125; HU 211208 B 19951128; HU T41251 A 19870428; IE 58396 B1 19930908; IE 851342 L 19851202; MC 1647 A1 19860407; NO 852168 L 19851203; NZ 212100 A 19880728; PH 19740 A 19860623; PT 80564 A 19850601; PT 80564 B 19870819; US 4642230 A 19870210; ZW 8485 A1 19861224
DOCDB simple family (application)
EP 85303461 A 19850517; AU 4312385 A 19850529; BR 8502640 A 19850531; CA 482255 A 19850523; DE 3565776 T 19850517; DK 241285 A 19850530; ES 543727 A 19850531; GR 850101195 A 19850516; HU 204085 A 19850528; IE 134285 A 19850530; MC 1771 A 19850531; NO 852168 A 19850530; NZ 21210085 A 19850516; PH 32348 A 19850531; PT 8056485 A 19850531; US 73655585 A 19850521; ZW 8485 A 19850613